USTDA Funded Kenya Network Energy Storage Study US-Africa Clean Energy Standards Program Ener ergy Storage Standards, Con Conformance and Tech echnology Workshop th May 2018 Nairobi, 24 th
KENYA NETW TWORK ENERGY STORAGE STU TUDY Grant Signing Ceremony with Ambassador Godec in Nairobi 27 th April 2017 USTDA Funded Kenya Network Energy Storage Study: USTDA Grant of $1.1m for Technical Assistance to Kenyan Grid Study for Energy Storage Assessment. The analysis will identify and financially quantify the potential benefits of the systematic deployment of battery energy storage across the Kenyan grid. And design an optimized network energy storage system (NESS) to deliver value added ancillary services to the Kenyan electricity system. Partnership Announcement USTDA and Dr Randell Johnson (Acelerex, Inc) at National Press Club, Washington DC, 15 th February 2017
Xago Afric ica and the Proje ject Team • Xago Africa is a developer of renewable energy and infrastructure projects supported by private funding which aims to support economic growth and sustainable industrial development in Africa • Established in Kenya in 2014, Xago Africa combines engineering and project management capabilities with a strong investor network • Currently developing the 40 MW Siaya Solar Power & Energy Storage Project near Lake Victoria which will help to alleviate power shortages in Western Kenya • And a 30 MW solar + energy storage project in Zimbabwe • While also promoting battery energy storage systems to substantially enhance the efficiency and stability of national electricity systems and to accelerate the integration of renewable energy sources • Xago Africa (the grantee) secured the USTDA grant for the Kenya Network Energy Storage Study with California battery technology company Primus Power as prime contractor and Boston based Acelerex in the role of Technical Assistance provider • Primus Power offers long-duration, fade-free energy storage solutions (zinc bromide flow battery technology) for the smart grid • Acelerex is a global data analytics and software company active in electricity sectors, renewables, grid modelling and energy storage management systems
About Acelerex Core Capabilities ✓ Energy Storage System Design Recognized leader in ESS optimization ✓ High-Performance Computing Nodal, real-time power market analysis ✓ Stacked Services Tested, proprietary energy management tools ✓ Real-time Control System Software Propriety Software ✓ Blockchain and Smart Contract Use smart contracts to cut transaction costs ✓ Super computing via the cloud Asset Optimization ✓ Experienced due diligence capability Remote Operations ✓ Located at Cambridge Innovation Center (CIC), Cambridge Portfolio mgmt. ✓ Services 4
Technical Assistance - Terms of f Reference • Task 1: Kick-off Meeting and Information Gathering • Task 2: Stakeholder Engagement • Task 3: Technical Analysis • Task 4: Economic Analysis • Task 5: Financial Analysis • Task 6: Preliminary Environmental Impact Assessment • Task 7: Legal, Regulatory and Institutional Review • Task 8: Development Impact Assessment • Task 9: US Sources of Supply • Task 10: Implementation Plan • Task 11: Tender Documents Preparation and Owner’s Engineer Tasks • Task 12: Final Report 5
Methodology of Energy Storage Stu tudy in in Grid Pla lanning
Stakeholder Engagement Programme • Primary objective of the Stakeholder Engagement Programme is to seek input from and educate Project Stakeholders in government, the power utilities, industrial and consumer groups • Capabilities and benefits of energy storage solutions • Technical aspects of integrating energy storage systems with the other systems in the power grid, and • Policies and practices that can support the adoption of energy storage technologies in Kenya • And engage key stakeholders in the network storage study through an Advisory Committee and Working Groups – representatives from MOE, ERC, Kenya Power, KETRACO, KenGen • Data gathering and analytics • Network system modelling • Scenario building and optimization • Study results and recommendations 7
Key Stakeholders and Advisors
Potential Benefits of f Network Energy Storage 1. Increase efficiency and stability of national grid 2. Optimise the grid by storing and releasing energy when and where it is needed thereby reducing energy waste 3. Defer capital expenditure on the grid by utilizing existing transmission and distribution capacity more efficiently during off-peak hours ( T&D Deferral ) 4. Defer capital expenditure on generating capacity by replacing peaking plants and spinning reserve with battery storage ( Peak Shaving and Spinning Reserve ) 5. Deliver Ancillary Services • Frequency Regulation • Voltage Support • Peak Shaving • Spinning Reserve • Black Start 6. Provide pathway to expand Renewables Integration by • Storing energy locally at solar or wind farms when it cannot be utilized by the grid • Discharging that energy to the grid during peak periods • Firming and smoothing variable generation output 7. Reduce reliance on expensive fossil fuels 9
TRANSMISSION Less Transmission Upgrades or Additions. FOSSIL FUEL GENERATION DISTRIBUTION Emission Reduction Less Distribution Station Maintenance Less Power Plant Maintenance Voltage Control Less Fossil Fuel Burn Energy Storage Provides Asset Utilization and Capex Deferral Reduction of Peaking & Spinning Benefits Throughout the Entire Reserve Plants Electricity Supply Chain ENERGY STORAGE ELECTRICITY SUPPLY CHAIN Lithium Ion Batteries Pumped Hydro Power Flow Batteries Compressed Air Flywheels Thermal RENEWABLE GENERATION More Integration of Renewables CONSUMPTION Renewables Smoothing & Firming Time Shifting Renewables DISTRIBUTED GENERATION More Secure System Voltage Control More DG/DR Integration Resiliency
Tim ime Shift ft of f Renewables and Peak Reduction Net Load Profile Demand Wind Solar • Renewables help to reduce system peak and storage can provide additional peak reduction by shifting energy from non-peak to peak • Relieves distribution constraints
Solar/Wind Shifting & Ramp Control 4 Quadrant Power Control Wind Ramp Control Solar Ramp Control Higher quality power through Renewables shifting or ramping control of the four quadrant active power generators reduces solar curtailment and and reactive power control resource intermittency caused by weather, etc to help eliminate voltage violations and solve power flow non-convergence
Stacked Services ALLOCATED MWh / kWh NOMINATED MW / kW ENERGY ARBITRAGE ENERGY ARBITRAGE SPINNING RESERVE SPINNING RESERVE REGULATION REGULATION ENERGY POWER FREQUENCY RESPONSE FREQUENCY RESPONSE PEAK SHAVING PEAK SHAVING RENEWABLE INTEGRATION RENEWABLE INTEGRATION BLACK START BLACK START Stacked Services can be optimized to: Implication of bidding of stacked services • • Minimize Cost Increase ROI of ESS • • Maximize Revenue Improve micro-grid operation • • Minimize Load Peak Stabilize energy markets • • Others Optimize ES utilization
MA State of f Charge Report Benefits In the study Massachusetts "State of Charge" report, 78 sites were selected for energy storage deployment through both the production cost optimization model and the capacity optimization model. These sites accounted for 1,766 MW/2,125 MWh of energy storage, which would result in up to $2.3 billion in total benefits . 14
NYSERDA Energy Storage Stu tudy Roadmap • Initial/Partial Base Case Benefits and Costs under a Resource Cost-Style Lifetime BCA 2025 (1,500 MW, 7,267 MWh) 2025 (1,988 MW, 9,578 MWh) 2030 (2,795 MW, 12,557 MWh) Model Benefits NPV in 2017 M$ Model Benefits NPV in 2017 M$ Model Benefits NPV in 2017 M$ $99 $140 $75 Ancillary Services Ancillary Services Ancillary Services $588 $732 $516 Capacity Value Capacity Value Capacity Value $1,116 $1,533 $892 Distribution Savings Distribution Savings Distribution Savings $125 $214 $81 FOM FOM FOM $146 $199 $118 Gen Cost Savings Gen Cost Savings Gen Cost Savings $2,074 $2,818 $1,634 Benefit Benefit Benefits $1,463 $1,766 $1,104 Costs Costs Costs $1,052 $611 $530 Net Benefits Net Benefits Net Benefits Note: Does not include quantification of any emissions benefits including carbon, SOx, NOx, and health impacts. Transmission benefits from congestion relief are included in lower LBMPs within “Generation Cost Savings.” Examining any potential for avoided transmiss ion infrastructure was beyond the scope of this study and not considered in the model. 15
Powering the Future wit ith Renewable les and Energy Storage • 600 Million Africans without Electricity • Government Plans on Connecting Households to Electricity • Last Mile Connectivity • Distributed Generation Systems • Economic Development is supported by Reliable Cost Effective Power Sector • Reduced Dependency on Fossil Fuels • This Generation can Fully Exploit Renewables with Energy Storage
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